#include <iostream>

using namespace std;

void swap(int& a, int& b)
{
    int temp;
    temp = a;
    a = b;
    b = temp;
}

int main()
{
    int val1 = 10;
    int val2 = 20;

    cout << "before swap:  " << "val1: " << val1 << endl;
    cout << "before swap:  " << "val2: " << val2 << endl;

    cout << "----------------------------------" << endl;

    cout << "你好" << endl;
    swap(val1, val2);
    cout << "add" << endl;
    cout << "cmake你好" << endl;
    cout << "cmake这里是中文" <<  endl;
    cout << "cmake这里是中文" <<  endl;
    cout << "cmake这里是中文" <<  endl;
    
    cout << "最后使用utf8增加一行" << endl;

    cout << "after swap:  " << "val1: " << val1 << endl;
    cout << "after swap:  " << "val2: " << val2 << endl;

    cout << "成了,最后更新C14就没问题了" << endl;

    return 0;
}
